Wire-nail machine



(No Model.) 6 Sheets- Sheet 1.'

R. EGLI.

I WIRE NAIL-MACHINE. NO. 809,446. Patented 1360., 16, 1884.

N. PETERS. Phnlo-Lilhngmphcr. Washinglofl, D, c.

(No Model.) 6 v8heets-Shee't 2.

R. EGLI. i

WIRE NAIL MACHINE.

Pifi finted Dec. 16, 1884..

WITNESSES:

, ATToRNEYs.

N4 PETERS, Plwku Lxlhcgr-mphnr. \vaamn mm D. a

(No Model.) 6 Sheets-Sheet 3..

R.E G-LI.

WIRE NAIL MACHINE.

No. 309,446. Patented Dec. 16,1884.

WITNESSES N. PETERS. Phnlmhlhogmphur. Washin mn. n.c

(No Model.) 6 Sheets'-Sheet 4.

WIRE NAIL MACHINE. No. 309,446. Patented Dec; 16,1884.

WITNESSES o Mod l.)

6 Sheet 5 WIRE NAIL MAUHIN W VENTO V BT6 I ATTORNEYS (No Model.) 6Sheets-Sheet 6.

RQEGLI. WIRE NAIL MACHINE.

No. 309,446. Patented Dec. 16, 1884.

WITNESSES: INVENR ATTORNEYS,

N. PETERS Fi m-Lmm m hcr. .vnshm mm D. C.

llniirnn Sra'rns ATENT tries.

ASSIGNMENTS, TO LEW'IS M. LO

SS, OF ROCHESTER, N EW YORK.

WlRE NAlL MACHINE.

SPECIFICATION forming part of Letters Patent No. 309A 1-6, datedDecember 18, 1884:.

Application filed February 21, 1884. (No model.)

To ctZZ whom, it may concern.-

Be it known that I, RUDoLF EGLI, of Rapperschwyl, in the Republic ofSwitzerland, have invented certain new and useful Im- 5 provements inMachines for Making Shoe Nails and Tacks, of which the following is aspecification.

This invention has reference to an improved machine for making shoenails and tacks of any desired size and shape from a continuous piece ofwire that is fed to the machine and cut into nail-blanks of peculiarshape, which blanks are acted upon successively by the differentmechanisms constituting the machine,

1 so that with each fall rotation of the driving shaft anentirely-finished nail or tack is produced.

My improved machine forms more especially a modification of the machinefor making shoe and upholsterers nails for which Letters Patent of theUnited States have been granted to me heretofore under date of July 3,1883, No. 280,458, the modifications being designed with a view to makethe machine more compact and of simpler and less expeu sivcconstruction, and specially adapted to make nails and tacks of a smallersize.

The instrumentalities employed in my improved machine which forms thesubject-mat- 0 ter of this application are in general the same as thosewhich have been employed by me in the patented machine referred to, towit: first, a mechanism for taking up and inter mittently feeding thewire; second, a wireholding mechanism third, a wire cutting mechanism,whereby nail-blanks of proper size are cut off from the wire; fourth, anailblank carrying mechanism which conducts the blank from thecutting-knives to the jaws of the head-forming dies; fifth, theheadshaping dies, which consist of lower holding-dies and a drop-die;and, sixth, a mechanism for throwing out the finished nail.

Instead of actuating these different mechanisms from one powershaft atthe upper part of the machine, as in my former patent, I propose tolocate the driving-shaft at the lower part of the machine, and to employan auxiliary shaft at the lower part of the machine, whereby theactuating mechanisms are concentrated at the lower part of the machine,so that the machine is rendered more compact, more stable, and lesscomplicated.

The invention consists more especially in the specific construction ofthe different actuating mechanisms and their combination with thepower-transmitting shafts.

In the accompanying drawings, Figure 1 represents a front elevation ofmy improved machine for making shoe nails and tacks with the wire-reelremoved. Fig. 2 is a rear elevation, Fig. 3 a side elevation, and. Fig.4. a plan, of the machine. Figs. at and 4: are details of thenail-blank-carrying mechanism. Fig. 5 is a vertical transverse sectionof the 6 5 machine on line or m, Fig. 4. Fig. 5 is a detail of thewire-holding mechanism, located immediately below the cutting-knives.Fig.

5" is a detail of the wirefeeding mechanism. Fig. 6 is an end elevationof the nail-blankcarrying mechanism, drawn 011 a larger scale; and Figs.7 and 8 are respectively a detail view of the lower nail-holding diesand a horizontal section of the same on line 3/ Fig. 7.

Similar letters of reference indicate come sponding parts. I

A in the drawings represents the support ing-frame ofthe machine, whichframe is made of cast-iron or suitable material; A, the bed plate of thesame, and B a horizontal table at the upper part of frame A.

At the rear part of the frame A, at some distance below the table, arearranged brack etbearings a a for the main driving-shaft S, thatreceives rotary motion by a belt-aud-pulley transmission from a suitablepower-shaft. A fly-wheel, S, is arranged on the main shaft S, close tothe fast and loose pulleys of the same, as shown in Figs. 1 and 2.

At the lower part of the frame A,and vertio cally below the main shaftS, is arranged an auxiliary shaft, S, which turns in bearings a, andwhich receives rotary motion by strong gear-wheels b b from the mainshaft S.

At the lower rear part of the frame A is ar- 5 ranged a wireree1, O,which is supported in bracket-bearings a as shown in Fig. 5.

From the wire-reel Gthe wire from which the nails or tacks are made isfed to the machine, it being first taken up by the intermittently- IOOactuated wire-feeding mechanism D,- which is arranged at the rear partof the machine, and then taken up "by the wire-holding mechanism D,whiehis arranged above the feed mechanism,and intermediately between the sameand the cutting-knives.

The wire feeding and holding mechcmism. The wire-feeding mechanism D isshown in Figs. 2 and and in detail in Fig. 5". It consists of afiXedperforated eye, (I, that is rigidly secured to the frame A, and providedwith a vertieallyadjustable stop-screw, (1, forward of theguide-perforation for the wire. A lat eral arm, (1 is pivoted to therear part of frame A, as shown in Fig. 2, which is provided with anangular rearward-projecting bracket, d having a socket for a transversesteel cheek, d, of cylindrical shape, which check is rigidly secured inits socket by asetscrew, 01 The steel cheek dproj ects slightly beyondits socket, as shown clearly in Fig. 5. "When the projecting portion ofthe steel cheek d* is worn by use,it is turned in its soeket,and therebyanother part of its circumference exosed to wear. The bracket d isprovided with two downwardlyprojecting ears, d, to which is pivoted anoscillating lever, d having upwardly-extending sleeves dithat guide,respectively, the serrated adjustable steel jaw d and its set-screw (1The adjustable jaw d and its set-screw (F are arranged in line with eachother and at right angles to the steel cheek d", the wire passing upbetween the check (1* and serrated jaw d, so as to be rigidly taken holdof by the same at the proper moment for feeding the wire.

To the outer end of the lever d is pivoted the lower end 'of. alever-arm, d, the slotted upper end of which embraces the main shaft S,and is provided with a roller, (1, that is engaged by a cam or nose, (1,on the shaft S. At each revolution of the shaft S the nose (1 engagesthe roller (7, and lifts thereby the lever-arm d and lever (1 so as tocause the serrated end of thejaw cl to bite the wire and press itrigidly against the convex projecting cheek d", as shown clearly in Fig.5". As the lateral arm d is lifted simultaneously by the action of thelever mechanism (1 (1 the wire is thereby lifted to a lengthcorresponding to the size of the blank to be cut off. The moment thenose (1 passes the roller (1 the le 'verarm d and thelever d aredropped,whercby the jaw d is released from the wire, which is retainedby the holding mechanism D next above. The lever d is stopped in itsdownward motion by the head of the stop-screw d, which, in connectionwith the nose d, controls the length of feed. The stopscrew (1 may beadj ust-ed higher orlower in its socket, according as a smaller orlarger nail-blank is to be cut off by the cutting-knives.

From the wire-feeding mechanism D j ust described the wire is passedthrough a fixed vertical guide tube, (1, which serves to straighten thewire, and is then delivered to a guide-tube, d, of the holding mechanismD. The vertical guide -tube (1 has a conically flaring lower end, whichserves as a scraper, and removes from the wire any small metallicparticles adhering thereto, which are dropped to the bed-plate. Abovethe guide tube d are arranged at opposite sides the wire-holdin g jawswhich are arranged vertically above each other, as shown in Fig. 5. Theholding-jaws d have slightly concaved faces, and are so adj usted bytheir set-screws d that they impart a considerable friction on the wire,and prevent the same from receding when the feeding mechanism D isdropped.

The nail-blankcutting mechanism-The nailblank cutting mechanism consistsof two knife-levers, E E, which are applied to a transverse fulcrum, e,and provided at their lower ends with anti-friction rollers e, that takeinto symmetrically arranged cam grooves e on the auxiliary shaft S, sothat the levers E E are simultaneously oscillated on the fulcrum. Theenlarged upper ends of the knifelevers E E have longitudinal recesses c,within which the cutting-knives c are rigidly secured by tapering keys eand accurately adjusted by set-screws e as shown clearly in Figs. 4 and5. The cutting-edges of the knives e are curved, so as to produce adiagonally-curved out across the projecting wire end, which forms thecharacteristic feature of my nail.- making machines, and which is fullydescribed in the prior patent hereinbefore referred to. As both knivesare oscillated, they exert a joint cutting action, so as to form thepointed shank of the nailblank, the thicker projecting part of which isformed afterward into the head of the nail or tack. According to thesize of the upper and thicker part of the nailblank, the head of thenail or tack can be made larger or smaller, as required by the size andshape of the nails or tacks to be produced. The shank of the nail-blankis not pressed into shape at this point, as in my former machine, butremains in the condition as it is delivered from the knives. As soon asthe wire is fed upward and before it is cut off by the knives, theprojecting end of the wire is taken hold of by the jaws of thenail-blank carrier F, so as to be conducted from the cutting-knivesforward to the lower holdingjaws of the nailshaping dies.

The na il-blcmhcarrying mechanism. The nail-blankcarrying mechanism F isshownin Figs. 45", 4", and 6. It consist-s of two separate actuatingmechanisms-one by which reciprocating motion is imparted to the carrierF, and one by which the fingers of the same are opened or closed at theproper moment. The mechanism for reciprocating the carrier is operatedfrom the main shaft S by an eccentric, f, which is connected byapivot-link, f, with an oscillating lever, f", that is pivoted at itslower end to supports on the bed-plate A, as shown clearly in Fig. 3.The upper end of the lever f 2 is oscillated between adjustable ICO IIO

f at the proper height above f of the carrier F collars f of ahorizontal rod, f. The rodf is guided by a laterally-adjustable sleeve,f, arranged on the table I and provided at its opposite end with alateral arm, f, that extends at right angles from the rod f toward thenail-torming dies. To the lateral arm f is applied a guide-piece, fwhich extends backward parallel to the rod f and which rests on a iixedguide-arm,f", which also cX- tends backward parallel to the rod f. Theguide-arm f serves to support the guide-piece the table 13. In the gui1le-piecef are transversely guided the parallel shanks f of the jawsf",the latter being vertically adjustable in the sockets of the shanksf" byset-screws/" A bell-crank lever, f, is pivoted at one end to bcaringsofthe guidepiece f the pivot f engaging by camsf" recessesf of theparallel jaw-holding shanks, as shown in Fig. it. end of the bell-cranklevcrf is provided with a stud, f, that is acted upon by a horizontaloscillating lever, f. This levcris secured to a pivoted sleeve f, at thefront part of the machine, and connected at its rear end by asocket-sleeve, f, with a lateral pivot-rod, the opposite end of which isa 'iplied to the upper end of a vertical lever, f that is pivoted at itslowerend to the bed-plate A. An intermediate roller, f, of the le verfis engaged by a grooved cam ,f, on themain shalt S, as shown clearly inFig. 2, whereby a laterallyoscillating motion is imparted to the lever fand to the horizontally-oscillating lever f. This motion is transmittedby the lever to the bell-crank lever f, as shown in Fig. 4, whereby thecams f of the pivot move the jaw-holding shanks f in opposite directionsto each other, so as to open thejaws f. An exterior heel, f, of thepivot f is acted upon by the free end of a strong spring, f', which isattached to a projection of the guidepiece f The spring f serves toreturn the jaws of the carrier into closed position as soon as theoscillating lever f recedes from the stud f" of the bell-crank lever fThejaws take hold of the projecting end of the wire, which is then cutby the knives, after which the carrier is moved with the nail-blankforward until its jaws 1"" ar rive vertically above the jaws of thelower nail-forming die, at which point the jaws are opened, so that thenail-blank is dropped into the jaws of the lower die. The carrier F isthen moved backward again into its rearmost position above theprojecting end of the wire, so as to be out of the way of the d rop-die,by

which the head of the nail or tack is formed.

The nailforming dicta-'lhe dies by which the proper shape is given tothe head of the nail or tack are shown in Figs. 1, 7, and 8. Theyconsist of the lower die, G, which is formed of two jaws, g 1 that forma kind of anvil, and of the drop-die G. The jaw y is fixed and supportedon a vertically-adjustable rest'block, 9 of the supporting-frame of thel of the drop-die, according The outer machine. The second jaw, g, ispivoted at its lower end to a socket oi. the fixed jaw g, and acted uponby a strong spring, which presses the jaw g tightly against the jaw Themovable jaw g is moved laterally against the tension of the spring g bya stirrup, g, which extends around the movable jaw and which is attachedto a horizontally-gnided piece, 9 the heel g of which is engaged by akeeper, secured rigidly to the upper end of a fulcrumed lever, g. Thelower end of the fulcrunied lever f engages by a roller-pin, 0", acam-groove, of the lower shaft, S whereby a laterallyos cillating motionis imparted to the lever g". A check, 9, at the upper end of thefulcrumed lever 1 is adjusted by a set-screw, g, to the guide-picco o,whereby the exact degree of lateral motion of the movable jaw gisregulated. By the action of the lever g and check 1 theguide-piece ismoved sidewise, so as to press the jaw g against the fixed jaw while bythe action of the keeper on the heel 0 ol' the guidepiecc the jaw gismoved away from the fixed jaw g, and thereby the jaws g r/ opened. \Vhcnthe nail-blank carrier F arrives at the forward end ofits motion, thenail-blank is vertically above thejaws g, which are then in openposition. The carrier F dropsthe nailblank into the socket formed bytapering grooves in the faces of the jaws which are then closed onsaidshank, so as to firmly hold the blank in position. As soon as thecarrier 13 has delivered the blank to the jaws y, it (the carrier) ismoved back, so as to be out of the way of the drop-die G, which thendrops and forms the head of the nail or tack. The drop-die G correspondsto the size and shape to be imparted to the nail-head, and is adjustedby setscrcvs in a vertical socket, 1 which socket is supported by ahorizontal shank, that extends at right angles from the socket inaslceve-shap ed portion, 5 of the vertical shank G of the dropdic (l.Set-screws g secure the horizontal shank g of thesockct g rigidly in theenlarged portion 1/. The proper position of the dropdie G in the socketg is adjusted by a set-screw, which is vertically in line with thecenter of the drop-die G, said setscrew being flllillClll'lOlG seen redby a second horizontal set-screw, g. By means of the set-screws g, g,and .g the drop-die G can be set into exact position relatively to thelower die, G, as required by the size of the head to be formed, A headedrod, is ap plied to the upper end of the shank G of the drop-die, andacted upon bya strong V-shaped or other spring, G, of wood or othersuitable material, which is connected to theceiling or other point ofsupport. The upper end of the spring G is connected by straps g' andclampscrcws y to slotted side rods, that are secured to bracket-plates 9of the shank i of the drop-die. The spring G serves to impart a greateror smaller force to the blows as larger or smaller I CC;

therefore,

1 against metal, and

nails are to be made on the machine. The operation of this spring isfully described in the patent heretofore referred to, and requires, nofurther description. The shank G of the drop-die G is guided in verticalways 9" of the supporting-frame A of the machine, the weight of theshank and die-sockets portion imparting, in connection with the force ofthe spring G, the required power by which the head of the nail isformed. The shank G of the drop-die is lifted at the proper moment by acam, 9 on the lower shaft, S and dropped at the required moment. Tocushion the blow of the drop-die the enlarged portion g drops on aleather or other cushion, y, at the upper end of the guideways g of theshank G so as to prevent the striking of metal prevent also thebattering or injuring of the heads of the jaws-g g of the lower die, G.

The throwingout mechanism-This mechanism is shown in Figs. 1, 3, and 4.It 'consists of a throwing-out lever, h, that is placed between the jawsg g of 'the lower die, G, and secured adjustably to a socket, h, of ahorizontal rod, h which turns in fixed bearings 71 of thesupporting-frame. A crank-arm, h", connects the shank of the socket-rodh with a pivot-rod, If, and a fulcrumed lever, h, at the lower part ofthe machine. The opposite end of the lever h is provided with aninclined nose, h, that is engaged by a projecting steel nose, h of acam,7L9, on the lower shaft, S. At each revolution of the shaft S the leverh is thrown forward, which motion takes place at the moment when thelower jaws, g g, are separated from each other after the head of thenailhasbeen formed by the blow ofthe drop-die .G. The nail is therebyejected with considerable force from the jaws g g, and dropped in asuitable receptacle arranged for this purpose at the front part of themachine. Thejaws are held in open position until the next blank isconducted to them by the carrier F, the throwing-out lever it beingreturned into its normal position between the jaws, as shownin Fig. 3.

Operation of the machine.-The general operation of the machine is thesame as that of the machine heretofore patented to me. The wire is fedby the feeding mechanism to the wire-holding mechanism and to thecuttingknives, and cut in a diagonally-curved line across the wire insuch a manner that alarger portion is formed at the upper part, and asmall pointed shank at the lower part, of the blank. The head of thenail-blank is taken hold of by the jaws of the nail-blank carrier, whichconducts the nail-blank to the jaws g g of the lower die, Gr, the latterholding the shank of the nail-blank until the blow of the drop-die formsthe head of the same. The carrier moves back toward the cutting-knivesafter the jaws gg have taken up the-nailblank, and takes up the nextblank which is out from the wire by the cutting-knives, the

wire having been fed forward by the action of the wire-feedingmechanism. As soon as the nail or tack is formed, it is thrown out bythe ejecting-lever. Each complete revolution of the driving-shaft willform, by the successive action of the mechanisms described, one completenail or tack, the head of which may be of any size or shape, and eitherplain or fancy, as required.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. The feed mechanism herein described, consisting ofan oscillating lever, (1 socket d steel cheek d, an adjustable jaw, of,a hinged oscillating lever, (1 a slotted pivot-arm, d, having a pin, (Zand shaft S, having a nose, at, substantially as set forth.

2. In the feed mechanism herein described, the combination of theoscillating lever (1", having a socket, d, a cylindrical steel cheek, d,set-screw d, hinged lever d, guide-sockets (l steel jaw d, and set-screwd substantially as set forth.

3. In a blank-carrying mechanism for nailmachines, the combination ofthe parallel sliding shanks f, having the blank-holding jaws, and havingthe recesses f, the pivot f having the cams f and means, substantiallyas described, for rocking the pivot), as and for the purpose shown andset forth.

I. In ablank-carrier for nail-machines, the combination of the parallelsliding shanksf having the blank-holding jaws and the recesses f, thepivotf the elbow-lcverf, havinglug f the spring f, and the means,substantially as shown and described, for holding the elbow-levertilted. during the rearward stroke of the carrier, as and for thepurpose shown and set forth.

5. In a nail-machine, a nail-blank-carrying mechanism consisting of theparallel shanks f", having jaws f guidc-piece ff, pivoted elbow-lever f,having a heel, f Sp1111gf, oscillatinglever f lateral connecting-rod foscillating lever f having a roller-pin, f, and shaft S, havingcam-groovef, whereby the jaws are opened or closed at the proper moment,substantially as specified.

6. In a nailmachine, the combination of the parallel shanksf, havingjaws f a guide piece, f", a fixed angular guide-arm,f a reciprocatingarm, fj', having end collars, f", a fixed guide-sleeve, f, a pivoted1cver,f, connecting cranlcrod f, and shaft S, having cam f, whereby areciprocating forward and backward ,motion is imparted to the nailblankcarrier, substantially as set forth.

7. In a nail-machine, the combination of the fixed wire-holding jaws dcutting-knives e fulcrumed knife-levers E ll, and shaft S", havingcam-grooves c engaging rollers e of the knife-levers, whereby alaterally-oscillating motion is imparted to the cutting-knives,substantially as set forth.

8. The combination of the lower holding- 309A6 i I 5 dies, G, composedof a fixed jaw, g, and a lat l erally-movable jaw, g, with ahorizontallyreciprocating guide-piece, having a stirrup, g, and heel g,i'nlernnied lever hav ing a keeper, and adjustable cheek 'g, and

RUDOLF EGLT.

shaft S, having cam-groove g, engaging so as to open or close I as setforth. 1

l l l roller of the lever g, the jaws, substantially 9. The combinationof the drop-die G, a vertical socket, having set-screws and horizontalshank main shank G having a sleeve, g and set-screw g", and a set-screw,g, in line with the drop-die G, substantially as set forth.

W'itnesses:

.lionis (J. Rnncnnnn, SIDNEY DIANN.

